Quantum-field-theory calculation of the two-dimensional Ising model correlation function [PDF]
Physical Review D, 1977 The equivalence between the two-dimensional Ising model and a free fermion field theory is used to rederive various results for the two-spin correlation function in the critical region.
Myron Bander, C. Itzykson
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Bose-Einstein correlation function
Physical Review C, 2003 We show that a recently proposed derivation of Bose-Einstein correlations (BEC) by means of a specific version of thermal quantum field theory, supplemented by operator-field evolution of the Langevin type, allows for a deeper understanding of the ...
G. A. Kozlov, O. V. Utyuzh, G. Wilk
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The Cosmological OTOC: Formulating New Cosmological Micro-Canonical Correlation Functions for Random Chaotic Fluctuations in Out-of-Equilibrium Quantum Statistical Field Theory [PDF]
Symmetry, 2020 The out-of-time-ordered correlation (OTOC) function is an important new probe in quantum field theory which is treated as a significant measure of random quantum correlations.
Sayantan Choudhury
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Universe, 2020 In this work, we study the impact of quantum entanglement on the two-point correlation function and the associated primordial power spectrum of mean square vacuum fluctuation in a bipartite quantum field theoretic system.
Sayantan Choudhury, Sudhakar Panda
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Form factors and correlation functions of $$ \textrm{T}\overline{\textrm{T}} $$-deformed integrable quantum field theories [PDF]
Journal of High Energy Physics, 2023 Abstract The study of $$ \textrm{T}\overline{\textrm{T}} $$ T T ¯ -perturbed quantum field theories is an active area of research with deep connections to fundamental aspects of the scattering theory of integrable quantum
Olalla A. Castro-Alvaredo +2 more
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Hybrid quantum-classical algorithm for computing imaginary-time correlation functions [PDF]
Physical Review Research, 2022 Quantitative descriptions of strongly correlated materials pose a considerable challenge in condensed matter physics and chemistry. A promising approach to address this problem is quantum embedding methods. In particular, the dynamical mean-field theory (
Rihito Sakurai +2 more
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The edge of chaos: quantum field theory and deep neural networks [PDF]
SciPost Physics, 2022 We explicitly construct the quantum field theory corresponding to a general class of deep neural networks encompassing both recurrent and feedforward architectures.
Kevin T. Grosvenor, Ro Jefferson
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Calculating the infra-red limit of quantum field theory using analyticity of correlation functions [PDF]
Journal of High Energy Physics, 2000 We describe a general method for calculating the infra-red limit of physical quantities in unitary quantum field theories. Using analyticity of Green functions in a complex scale parameter, the infra-red limit is expressed as a contour integral entirely in the ultra-violet region.
Lars Kjæ rgaard, Paul Mansfield
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THE ASYMPTOTICS OF THE CORRELATION FUNCTIONS IN (1+1)d QUANTUM FIELD THEORY FROM FINITE SIZE EFFECTS IN CONFORMAL THEORIES [PDF]
International Journal of Modern Physics A, 1992 Using the finite-size effects, the scaling dimensions and correlation functions of the main operators in continuous and lattice models of 1d spinless Bose-gas with pairwise interaction of rather general form are obtained. The long-wave properties of these systems can be described by the Gaussian model with central charge c=1. The disorder operators of
А. Миронов, A. Zabrodin
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Quantum Field Theory of Correlated Bose–Einstein Condensates: II. Ward–Takahashi Identities and Correlation Functions [PDF]
Journal of the Physical Society of Japan, 2021 11 ...
Takafumi Kita
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